Tuvalu is a small and isolated island nation in Oceania, located roughly halfway between Hawaii and Australia. It consists of three reef islands and six atolls. Tuvalu has a tropical climate with high average annual rainfall, although precipitation varies significantly from year to year. The country’s highest elevation is only 4.6 meters above sea level, which, combined with exposure to cyclone-generated winds, storm surges, ocean swells, and rising sea levels, makes Tuvalu particularly vulnerable to climate change (World Bank Group, 2021).  Despite these risks, Tuvalu is classified as a low-risk country in the World Risk Report (2023). 

Climate projections for Tuvalu remain uncertain due to limited data availability and the country’s small geographic scale (World Bank Group, 2021).  However, key climate risks include increasing heatwaves, intensified cyclones, saline intrusion, coastal erosion, wave-driven flooding, and permanent inundation (IPCC, 2019).  Limited soil availability means the country relies heavily on food imports and fisheries (ibid.). Overfishing and climate change impacts on marine ecosystems are expected to further affect coral reefs and fish stocks (ibid.). Tuvalu’s freshwater supply depends almost entirely on rainfall, making meteorological droughts a major threat to water security (ibid.).  

The IPCC (2014)  also notes that many communities in Tuvalu and other small island states are in highly vulnerable areas, such as low-lying shorelines or reclaimed swamplands, due to historical development and infrastructure expansion, which increases their exposure to climate-related hazards. 

Through initiatives such as the Tuvalu Coastal Adaptation Project, the government is working to reduce the impacts of climate-induced sea level rise on key infrastructure. Adaptation measures include beach nourishment, the construction of rock and concrete revetments, and seawalls to protect vulnerable coastal areas.